Animal control officers say the dog was reported by two people riding ATVs in the area of 12th Street.
LCAS says it appears the animal broke his chain and somehow ended up in the canal with the chain wrapped around his legs.
They say one of the young men who found him staying in the water up to his waist for over an hour to keep the dog from drowning.
Rescuers from animal services, the fire department and the sheriff's office helped rescue the 165-pound dog.
Animal services says he has a microchip, but the chip was never registered with them and they haven't been able to identify the vet who implanted the chip.
Anyone who recognizes the dog or has any information can call animal services at (239) 533-7387 (LEE-PETS).
(nbc-2.com - May 05, 2010)